CN107074751B - 尿素制造工艺中高纯度尿素水溶液的制造方法 - Google Patents
尿素制造工艺中高纯度尿素水溶液的制造方法 Download PDFInfo
- Publication number
- CN107074751B CN107074751B CN201580050847.3A CN201580050847A CN107074751B CN 107074751 B CN107074751 B CN 107074751B CN 201580050847 A CN201580050847 A CN 201580050847A CN 107074751 B CN107074751 B CN 107074751B
- Authority
- CN
- China
- Prior art keywords
- urea
- aqueous solution
- manufacturing
- concentration
- crystallization
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C273/02—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds
- C07C273/14—Separation; Purification; Stabilisation; Use of additives
- C07C273/16—Separation; Purification
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C273/02—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds
- C07C273/04—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds from carbon dioxide and ammonia
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C275/00—Derivatives of urea, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B2200/00—Indexing scheme relating to specific properties of organic compounds
- C07B2200/13—Crystalline forms, e.g. polymorphs
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-192989 | 2014-09-22 | ||
| JP2014192989A JP2016064991A (ja) | 2014-09-22 | 2014-09-22 | 尿素製造プロセスにおける高純度尿素水溶液の製造方法 |
| PCT/JP2015/074200 WO2016047356A1 (ja) | 2014-09-22 | 2015-08-27 | 尿素製造プロセスにおける高純度尿素水溶液の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107074751A CN107074751A (zh) | 2017-08-18 |
| CN107074751B true CN107074751B (zh) | 2019-11-15 |
Family
ID=55580885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580050847.3A Active CN107074751B (zh) | 2014-09-22 | 2015-08-27 | 尿素制造工艺中高纯度尿素水溶液的制造方法 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10173972B2 (ja) |
| EP (1) | EP3199518B1 (ja) |
| JP (1) | JP2016064991A (ja) |
| CN (1) | CN107074751B (ja) |
| WO (1) | WO2016047356A1 (ja) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL3274297T3 (pl) * | 2015-03-25 | 2022-06-13 | Stamicarbon B.V. | Zintegrowana produkcja mocznika do płynu do układu wydechowego silników wysokoprężnych i roztworu saletrzano-mocznikowego |
| US10519103B2 (en) | 2015-04-01 | 2019-12-31 | Toyo Engineering Corporation | Urea production method |
| EP3484601B1 (de) * | 2016-07-15 | 2020-05-20 | thyssenkrupp Fertilizer Technology GmbH | Verwendung einer harnstoffzusammensetzung zur herstellung von diesel exhaust fluid |
| CN111533670A (zh) * | 2020-04-30 | 2020-08-14 | 辽宁三特石油化工有限公司 | 一种尿素水溶液 |
| CN114307641A (zh) * | 2021-12-01 | 2022-04-12 | 四川泸天化股份有限公司 | 一种高纯固体车用尿素及其制备方法 |
| CN114534487B (zh) * | 2022-03-19 | 2024-06-04 | 北京盛鑫和谐润滑油脂有限公司 | 一种耐低温抗结晶尿素及其制备方法与应用 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4219589A (en) * | 1977-06-09 | 1980-08-26 | Compagnie Neerlandaise De L'azote | Process for urea granulation |
| CN101137619A (zh) * | 2005-03-09 | 2008-03-05 | 帝斯曼知识产权资产管理有限公司 | 含尿素的水流的制备方法 |
| CN102806011A (zh) * | 2011-06-03 | 2012-12-05 | 中国石油化工股份有限公司 | 一种车用尿素液还原剂的制备方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA649225A (en) * | 1962-09-25 | H. Cook Lucien | Urea crystallization | |
| US2892870A (en) * | 1955-11-21 | 1959-06-30 | Lonza Electric & Chem Works | Process for purifying and crystallizing urea |
| GR33978B (el) * | 1966-07-27 | 1968-02-29 | Snam Progetti S.P.A. | Μεθοδος δια την ληψιν ουριας χαμηλης περιεκτικοτητος εις διουριαν. |
| JP2008239574A (ja) * | 2007-03-28 | 2008-10-09 | Mitsui Chemicals Inc | 高純度尿素水の製造方法 |
| JP2008280263A (ja) * | 2007-05-09 | 2008-11-20 | Mitsui Chemicals Inc | 高純度尿素水の製造方法 |
| MY177074A (en) | 2011-10-14 | 2020-09-04 | Stamicarbon | Urea finishing method |
-
2014
- 2014-09-22 JP JP2014192989A patent/JP2016064991A/ja active Pending
-
2015
- 2015-08-27 CN CN201580050847.3A patent/CN107074751B/zh active Active
- 2015-08-27 EP EP15844606.2A patent/EP3199518B1/en active Active
- 2015-08-27 US US15/508,994 patent/US10173972B2/en active Active
- 2015-08-27 WO PCT/JP2015/074200 patent/WO2016047356A1/ja active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4219589A (en) * | 1977-06-09 | 1980-08-26 | Compagnie Neerlandaise De L'azote | Process for urea granulation |
| CN101137619A (zh) * | 2005-03-09 | 2008-03-05 | 帝斯曼知识产权资产管理有限公司 | 含尿素的水流的制备方法 |
| CN102806011A (zh) * | 2011-06-03 | 2012-12-05 | 中国石油化工股份有限公司 | 一种车用尿素液还原剂的制备方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2016064991A (ja) | 2016-04-28 |
| WO2016047356A1 (ja) | 2016-03-31 |
| US10173972B2 (en) | 2019-01-08 |
| EP3199518A1 (en) | 2017-08-02 |
| US20170283372A1 (en) | 2017-10-05 |
| EP3199518A4 (en) | 2018-03-28 |
| EP3199518B1 (en) | 2021-08-11 |
| CN107074751A (zh) | 2017-08-18 |
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| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |